Browsing Bergen Open Research Archive by Author "Thiele, Stefan"

Now showing items 1-5 of 5

    • Biotic transformation of methylmercury at the onset of the Arctic spring bloom 

      Kohler, Stephen Gustav; Heimbürger-Boavida, Lars-Eric; Assmy, Philipp Kurt Wolf; Müller, Oliver; Thiele, Stefan; Digernes, Maria Guadalupe; Ndungu, Kuria; Ardelan, Murat van (Journal article; Peer reviewed, 2024)
      Despite the lack of local anthropogenic mercury sources, methylated mercury (MeHg) concentrations in Arctic biota are higher than in biota from lower latitudes. The main entry route occurs during the bioconcentration of ...

    • Seasonality of the bacterial and archaeal community composition of the Northern Barents Sea 

      Thiele, Stefan; Vader, Anna; Thomson, Stuart; Saubrekka, Karoline; Petelenz-Kurdziel, Elzbieta Anna; Müller, Oliver; Bratbak, Gunnar; Øvreås, Lise (Journal article; Peer reviewed, 2023)
      The Barents Sea is a transition zone between the Atlantic and the Arctic Ocean. The ecosystem in this region is highly variable, and a seasonal baseline of biological factors is needed to monitor the effects of global ...

    • Shallow and deep groundwater moderate methane dynamics in a high Arctic glacial catchment 

      Kleber, Gabrielle Emma; Magerl, Leonard; Turchyn, Alexandra V.; Redeker, Kelly; Thiele, Stefan; Liira, Martin; Herodes, Koit; Øvreas, Lise; Hodson, Andrew (Journal article; Peer reviewed, 2024)
      Glacial groundwater can mobilize deep-seated methane from beneath glaciers and permafrost in the Arctic, leading to atmospheric emissions of this greenhouse gas. We present a temporal, hydro-chemical dataset of methane-rich ...

    • The summer bacterial and archaeal community composition of the northern Barents Sea 

      Thiele, Stefan; Vader, Anna; Thomson, Stuart; Saubrekka, Karoline; Petelenz-Kurdziel, Elzbieta Anna; Rief Armo, Hilde; Müller, Oliver; Olsen, Lasse Mork; Bratbak, Gunnar; Øvreås, Lise (Journal article; Peer reviewed, 2023)
      Climate change related alterations in the Arctic have influences on the marine ecosystems, in particular on phytoplankton bloom dynamics. Since phytoplankton blooms are the main provider of carbon sources to the microbial ...

    • A winter-to-summer transition of bacterial and archaeal communities in Arctic sea ice 

      Thiele, Stefan; Storesund, Julia Endresen; Férnandez-Méndez, Mar; Assmy, Philipp; Øvreås, Lise (Journal article; Peer reviewed, 2022-08-15)
      The Arctic is warming 2–3 times faster than the global average, leading to a decrease in Arctic sea ice extent, thickness, and associated changes in sea ice structure. These changes impact sea ice habitat properties and ...